Torsion bar fun

I got one years ago from my brother in law, after a tire broke one. It was off of a b-body he does not remember what year. But it is a larger thread, 9/16" I believe and a little longer with a 13/16" head. When I chafed my torsion bars and had trouble getting the ride height correct I looked around and none of the junkyards around have anything older anymore. I found aftermarket ones online that work for a or b bodies. Here is the address, hope that helps.
http://americanmuscle.carshopinc.com/product_info.php/products_id/74333/35612